JamesF

Hi All,
Had a guitarist nightmare on Sat night. Playing to a packed local pub, half way through one song, i got a hideous cramp in the forearm of my left hand. My hand turned into a claw and was forced to finish the song trying to play with just one finger. As you can imagine, it was nearly impossible. Managed to stretch it out a bit and finished the gig ok, but it was awfull and now i can feel my arm aching and my hand feels all swollen. Ive never had that before. I was quite tired at the time and also the gig was sprung on us at the last minute, so we didnt really have time to practice. Anyone else have that problem? Any advice on how to prevent it?
Thanks
Jim